<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - animation - basic</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<style>
			body {
				color: #fff;
				font-family:Monospace;
				font-size:13px;
				text-align:center;

				background-color: #000;
				margin: 0px;
				overflow: hidden;
			}

			#info {
				position: absolute;
				top: 0px; width: 100%;
				padding: 5px;
			}

			a {
				color: #f00;
			}

		</style>
	</head>
	<body>

		<div id="container"></div>

		<div id="info">
			<a href="http://threejs.org" target="_blank">three.js</a> webgl - animation - basic use
		</div>

		<script src="../build/three.js"></script>
		<script src="js/loaders/collada/Animation.js"></script>
		<script src="js/loaders/collada/AnimationHandler.js"></script>
		<script src="js/loaders/collada/KeyFrameAnimation.js"></script>
		<script src="js/Detector.js"></script>
		<script src="js/libs/stats.min.js"></script>

		<script>

			if ( ! Detector.webgl ) Detector.addGetWebGLMessage();

			var container, stats;
			var scene, camera, renderer;
			var clock = new THREE.Clock();

			var init = function(){

				container = document.getElementById( 'container' );

				camera = new THREE.PerspectiveCamera( 53, window.innerWidth / window.innerHeight, 1, 1000 );
				camera.position.x = 0;
				camera.position.y = 0;
				camera.position.z = 100;
				camera.lookAt(new THREE.Vector3( 0, 0, 0 ));

				renderer = new THREE.WebGLRenderer();
				renderer.setClearColor( 0x555555 );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild( renderer.domElement );

				stats = new Stats();
				container.appendChild( stats.dom );

				window.addEventListener( 'resize', onWindowResize, false );
			};

			var onWindowResize = function () {

				windowHalfX = window.innerWidth / 2;
				windowHalfY = window.innerHeight / 2;

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			};

			var createScene = function(){

				scene = new THREE.Scene();

				var axisHelper = new THREE.AxisHelper( 1 );
				scene.add( axisHelper );

				// SphereGeometry
				var sphereGeometry = new THREE.SphereGeometry( 5, 32, 32 );
				var material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
				var sphereMesh = new THREE.Mesh( sphereGeometry, material );

				// Setup animation
				var animationData = {
					"name"      : "Action",
					"fps"       : 25,
					"length"    : 2.0,
					"hierarchy" : [
						{
							"parent" : -1, //root
							"keys"   : [
								{
									"time":0,
									"pos" :[0,0,0],
									"rot" :[0,0,0],
									"scl" :[1,1,1]
								},
								{
									"time":1.0,
									"pos" :[30,0,0]
								}
								,
								{
									"time":2.0,
									"pos" :[0,0,0]
								}
							]
						}
					]
				};

				ensureLoop( animationData );

				var sphereMeshAnimation = new THREE.Animation( sphereMesh, animationData );
				sphereMeshAnimation.play();

				scene.add( sphereMesh );

			};

			var ensureLoop = function( animation ) {

				for ( var i = 0; i < animation.hierarchy.length; i ++ ) {

					var obj = animation.hierarchy[ i ];

					var first = obj.keys[ 0 ];
					var last = obj.keys[ obj.keys.length - 1 ];

					last.pos = first.pos;
					last.rot = first.rot;
					last.scl = first.scl;

				}

			};

			var animate = function () {
				requestAnimationFrame( animate );

				var delta = clock.getDelta();

				THREE.AnimationHandler.update( delta );

				render();
			};

			var render = function () {
				renderer.render( scene, camera );
				stats.update();
			};

			init();
			createScene();
			animate();

		</script>

	</body>
</html>
